The Post-a-Photo® Love / Friendship - Big Guess WhoPostcard Frame is fun and creative, it can be used for multiple occasions:You can send to your friends or family a picture of you with your new boyfriend, your new dog, your new haircut, or a picture took many time ago but that is just unforgetable… anything! Just slip your 4" x 6" picture in the postcard frame and seal with adhesive strip. Then write a few lines and mail!